[go: up one dir, main page]

WO2018030473A1 - Appareil d'utilisateur et procédé de communication - Google Patents

Appareil d'utilisateur et procédé de communication Download PDF

Info

Publication number
WO2018030473A1
WO2018030473A1 PCT/JP2017/028962 JP2017028962W WO2018030473A1 WO 2018030473 A1 WO2018030473 A1 WO 2018030473A1 JP 2017028962 W JP2017028962 W JP 2017028962W WO 2018030473 A1 WO2018030473 A1 WO 2018030473A1
Authority
WO
WIPO (PCT)
Prior art keywords
user apparatus
control information
resource
harq feedback
base station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/028962
Other languages
English (en)
Japanese (ja)
Inventor
真平 安川
聡 永田
一樹 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to US16/323,673 priority Critical patent/US20210392663A1/en
Priority to EP17839540.6A priority patent/EP3500017B1/fr
Priority to FIEP17839540.6T priority patent/FI3500017T3/fi
Priority to ES17839540T priority patent/ES2964975T3/es
Publication of WO2018030473A1 publication Critical patent/WO2018030473A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the user apparatus 10 applies a configuration having only the DL data resource area as the data resource area as shown in FIG.
  • the next TTI applies a configuration having a DL data resource area and a UL data resource area as shown in FIG. 2B.
  • N is an integer of 1 or more.
  • the configuration shown in FIGS. 2A and 2B is an example.
  • the reliability is improved as compared with the case where these allocations are performed separately. To do. This is because when signaling is performed separately, both signalings need to be detected correctly. Note that transmission of control information using a plurality of resources in one DL CCH is also included in one signaling.
  • FIG. 7 shows a configuration example in which no DL data resource area is provided in TTIn.
  • FIGS. 7A to 7C show that no DL data is received in TTIn, and therefore HARQ feedback transmission is not performed for the DL data.
  • HARQ feedback for DL data reception in TTIn-k may be transmitted in the UL data resource region in TTIn and / or UL CCH in TTIn.
  • control information includes DL data resource allocation information (may be called scheduling information), and HARQ feedback resource allocation on UL CCH. Contains information.
  • the HARQ feedback resource allocation information in the UL CCH is information of resources allocated for HARQ feedback transmission in the UL CCH (for example, any one or more of the position and size of the time / frequency resource, the code, and the sequence) Combination). Further, the HARQ feedback resource allocation information may include a symbol length (may be the number of symbols per unit time) and / or a subcarrier interval. For example, the reliability of HARQ feedback can be improved by setting a symbol length longer than the symbol length used for other information transmission for HARQ feedback transmission.
  • the user apparatus 10 may determine the HARQ feedback resource in the UL CCH according to the DL data resource position.
  • the HARQ feedback resource information may not be included in the control information transmitted on the DL CCH.
  • the base station 20 may notify the user apparatus 10 of the index of a plurality of resource candidates in the UL CCH in advance by higher layer signaling, and notify the resource index to be allocated to the user apparatus 10 via the DL CCH. Good.
  • an offset value from the reference resource using the resource specified by the index eg, one or more resource elements
  • the user apparatus 10 transmits HARQ feedback using a resource at a position that is separated from the position of the resource corresponding to the index by an offset value.
  • the control information when a radio frame of a certain TTI includes a UL data resource area, the control information includes DL data resource allocation information and HARQ feedback resource allocation information in the UL data resource area. Further, when HARQ feedback is transmitted using UL CCH in addition to the UL data resource area, the above-described HARQ feedback resource allocation information in UL CCH is also included.
  • the HACS feedback transmission MCS, resource information, and the like may be notified in advance from the base station 20 to the user apparatus 10 by higher layer signaling.
  • the control information transmitted on the DL CCH does not need to include MCS and resource information for HARQ feedback transmission, and includes information indicating the presence or absence of HARQ feedback, for example.
  • the information indicating the presence or absence may be information indicating whether transmission is possible.
  • the DL data resource allocation information may be regarded as information with HARQ feedback without including information indicating the presence or absence of HARQ feedback in the control information.
  • the base station 20 Similarly to the UL CCH, the base station 20 notifies the user apparatus 10 of the indexes of a plurality of resource candidates in the UL data resource area in advance by higher layer signaling, and the user apparatus by the DL CCH.
  • the index of the resource allocated to 10 may be notified. Further, an offset value from the reference resource using the resource specified by the index as the reference resource may be notified in addition to the index.
  • the control information transmitted on the DL CCH may include all of the information described so far as long as no contradiction occurs, or may include a part of the information described above.
  • FIG. 8 shows a case where HARQ feedback for DL data is transmitted in the UL data resource area, as in the case of FIG.
  • FIG. 8B shows a configuration example of the UL data resource allocated by the control information received on the DL CCH in the UL data resource area.
  • a reference signal is arranged over the entire frequency width of the UL data resource at the head portion of the UL data resource in the time domain.
  • reference signals are distributed and arranged in UL data resources.
  • HARQ feedback is mapped to the vicinity of the head symbol and the reference signal in the UL data resource.
  • the HARQ feedback can be quickly returned to the base station 20.
  • the base station 20 can detect HARQ feedback at high speed, and can perform retransmission in the next TTI, for example.
  • mapping the HARQ feedback in the vicinity of the reference signal high channel estimation accuracy for the HARQ feedback resource can be realized in the base station 20, and the reliability of demodulation and decoding of the HARQ feedback is improved.
  • the reference signal is not mapped to the head portion in the UL data resource.
  • the HARQ feedback is mapped within a region of a predetermined symbol range from the head symbol of the allocated UL data resource.
  • the HARQ The modulation scheme and coding rate in the resources in the symbol range may be changed so that feedback can be transmitted. In this case, it may be changed to a predetermined modulation method and coding rate for HARQ feedback, or may be changed to a modulation method and coding rate calculated by calculation using a predetermined calculation method.
  • the operation shown in FIG. 9B may be performed.
  • DL data resources, UL data resources, and UL CCH HARQ feedback resources are allocated by the control information 3.
  • the operation is the same as described above, and the user apparatus 10 is assigned a UL data resource when instructed to transmit HARQ feedback using the UL CCH (instruction by the control information 3) ( The allocation by the control information 3), the user apparatus 10 transmits HARQ feedback using UL CCH and transmits HARQ feedback using UL data resources.
  • the user apparatus 10 transmits HARQ feedback on the UL CCH when the HARQ feedback resource is allocated to the UL data resource area. Even when there is no instruction, HARQ feedback may be transmitted in the UL data resource area, and HARQ feedback may be transmitted in UL CCH.
  • the UL CCH symbol (time resource) can be configured not to change dynamically in order to protect it from interference.
  • the UL CCH symbol period exists regardless of whether HARQ feedback is transmitted. Therefore, an increase in overhead due to the above-described double transmission is not a problem. Rather, the reliability of HARQ feedback can be improved by performing double transmission.
  • a base station 20 may instruct the user apparatus 10 in the DL CCH control information (eg, control information for performing UL data resource allocation) in the TTI. Moreover, it is good also as instruct
  • the DL CCH control information eg, control information for performing UL data resource allocation
  • whether or not to perform the HARQ feedback double transmission operation using both the UL data resource and the UL CCH resource described with reference to FIGS. 9A, 9B, 10A, and 10B from the base station 20 to the user apparatus. 10 may be notified (set) by higher layer signaling.
  • the user apparatus 10 transmits HARQ feedback only in one of the UL data resource area and the UL CCH.
  • HARQ feedback may always be transmitted on the UL CCH, and if UL data resources are allocated, HARQ feedback may be transmitted on the UL data resources.
  • an increase in the overhead of the UL data channel can be avoided and the influence on the UL throughput can be avoided.
  • HARQ feedback can be detected early in the base station 20, and the retransmission delay can be reduced. There is a possibility.
  • the user apparatus 10 performs duplex transmission when the duplex transmission is instructed by the control information received on the DL CCH. It is good as well.
  • FIG. 11 is a diagram illustrating an example of a functional configuration of the user apparatus 10 according to the embodiment.
  • the user apparatus 10 includes a signal transmission unit 101, a signal reception unit 102, a resource management unit 103, and a communication control unit 104.
  • the functional configuration shown in FIG. 11 is merely an example. As long as the operation according to the present embodiment can be executed, the function classification and the name of the function unit may be anything.
  • the signal transmission unit 101 creates a transmission signal and transmits the signal wirelessly.
  • the signal receiving unit 102 includes a function of wirelessly receiving various signals and acquiring a higher layer signal from the received physical layer signal.
  • the resource management unit 103 includes resource information included in the control information received from the base station 20 by the signal reception unit 102, resource information instructed by higher layer signaling, preset resource information, and resource information determined by the user apparatus 10 , And various setting information.
  • the signal transmission unit 101 performs the HARQ feedback transmission operation described above based on the information held in the resource management unit 103. Further, the signal receiving unit 102 receives control information, upper layer signaling, broadcast signal, DL data, and the like based on information held in the resource management unit 103.
  • the “resource information” also includes information on the radio frame configuration.
  • the communication control unit 104 executes a control operation such as, for example, determining whether or not the user apparatus 10 performs double transmission.
  • FIG. 12 is a diagram illustrating an example of a functional configuration of the base station 20 according to the present embodiment.
  • the base station 20 includes a signal transmission unit 201, a signal reception unit 202, a resource assignment unit 203, and a communication control unit 204.
  • the functional configuration shown in FIG. 12 is merely an example. As long as the operation according to the present embodiment can be executed, the function classification and the name of the function unit may be anything.
  • the signal transmission unit 201 includes a function of generating a signal to be transmitted to the user apparatus 10 and transmitting the signal wirelessly.
  • the signal receiving unit 202 includes a function of receiving various signals transmitted from the user apparatus 10 and acquiring, for example, higher layer information from the received signals. In addition, the signal reception unit 202 receives HARQ feedback transmitted from the user apparatus 10 and retransmits data as necessary.
  • the resource allocation unit 203 creates control information to be transmitted on the DL CCH.
  • the created information is transmitted from the signal transmission unit 201.
  • the communication control unit 204 creates, for example, setting information to be transmitted by higher layer signaling and setting information to be transmitted by a broadcast signal.
  • the created information is transmitted from the signal transmission unit 201.
  • each functional block may be realized by one device in which a plurality of elements are physically and / or logically combined, or two or more devices physically and / or logically separated may be directly and directly. It may be realized by a plurality of these devices connected indirectly (for example, wired and / or wirelessly).
  • both the user apparatus 10 and the base station 20 in the embodiment of the present invention may function as a computer that performs the processing according to the present embodiment.
  • FIG. 13 is a diagram illustrating an example of a hardware configuration of the user apparatus 10 and the base station 20 according to the present embodiment.
  • Each of the above-described user apparatus 10 and base station 20 may be physically configured as a computer apparatus including a processor 1001, a memory 1002, a storage 1003, a communication apparatus 1004, an input apparatus 1005, an output apparatus 1006, a bus 1007, and the like. Good.
  • the term “apparatus” can be read as a circuit, a device, a unit, or the like.
  • the hardware configurations of the user apparatus 10 and the base station 20 may be configured to include one or a plurality of apparatuses indicated by 1001 to 1006 shown in the figure, or may be configured not to include some apparatuses. May be.
  • Each function in the user apparatus 10 and the base station 20 is obtained by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs an operation and performs communication by the communication apparatus 1004 and memory 1002. This is realized by controlling reading and / or writing of data in the storage 1003.
  • the processor 1001 controls the entire computer by operating an operating system, for example.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), software module, or data from the storage 1003 and / or the communication device 1004 to the memory 1002, and executes various processes according to these.
  • a program program code
  • the program a program that causes a computer to execute at least a part of the operations described in the above embodiments is used.
  • the signal transmission unit 101, the signal reception unit 102, the resource management unit 103, and the communication control unit 104 of the user apparatus 10 may be realized by a control program that is stored in the memory 1002 and operates on the processor 1001.
  • the signal transmission unit 201, the signal reception unit 202, the resource allocation unit 203, and the communication control unit 204 of the base station 20 may be realized by a control program stored in the memory 1002 and operating on the processor 1001.
  • the above-described various processes have been described as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001.
  • the processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.
  • the memory 1002 is a computer-readable recording medium, and includes, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. May be.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, and the like that can be executed to perform the processing according to the embodiment of the present invention.
  • the storage 1003 is a computer-readable recording medium such as an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray). (Registered trademark) disk, smart card, flash memory (for example, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • the storage 1003 may be referred to as an auxiliary storage device.
  • the storage medium described above may be, for example, a database, server, or other suitable medium including the memory 1002 and / or the storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like.
  • the signal transmission unit 101 and the signal reception unit 102 of the user device 10 may be realized by the communication device 1004.
  • the signal transmission unit 201 and the signal reception unit 202 of the base station 20 may be realized by the communication device 1004.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured with a single bus or may be configured with different buses between apparatuses.
  • Each of the user equipment 10 and the base station 20 includes a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array), and the like. It may be configured including hardware, and a part or all of each functional block may be realized by the hardware. For example, the processor 1001 may be implemented by at least one of these hardware.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the user apparatus in the radio communication system including the base station and the user apparatus, the resource allocation information for downlink data reception from the base station, and the uplink A receiving unit that receives control information including control information transmission resource allocation information through a downlink control channel, and a transmitting unit that transmits the uplink control information to the base station based on the control information received by the receiving unit A user device is provided.
  • the control information received by the receiving unit may include information designating a radio frame configuration applied by the user apparatus.
  • the radio frame configuration can be dynamically changed according to the occurrence state of data transmitted and received by the user apparatus, and low-delay communication can be realized.
  • the uplink control information transmission resource may be an uplink data transmission resource in an uplink data transmission resource region set in a radio frame having a predetermined time length.
  • the uplink control information can be transmitted using many symbols in the uplink data transmission resource, so that the base station can accurately receive the uplink control information.
  • the transmission unit may transmit the uplink control information using both the uplink data transmission resource and the uplink control channel resource.
  • the uplink control information can be transmitted using both the symbol in the uplink data transmission resource and the symbol of the uplink control channel resource, so that the base station can receive the uplink control information more accurately.
  • information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC signaling, MAC signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or a combination thereof.
  • RRC message may be referred to as RRC signaling.
  • the RRC message may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.
  • Each aspect / embodiment described in this specification includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • SUPER 3G IMT-Advanced
  • 4G 5G
  • FRA Full Radio Access
  • W-CDMA Wideband
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB User Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 UWB (Ultra-WideBand
  • the present invention may be applied to a Bluetooth (registered trademark), a system using another appropriate system, and / or a next generation system extended based on the system.
  • the input / output information or the like may be stored in a specific location (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information or the like may be transmitted to another device.
  • the determination or determination may be performed by a value represented by 1 bit (0 or 1), may be performed by a true value (Boolean: true or false), or may be performed by comparing numerical values (for example, (Comparison with a predetermined value).
  • the information, signals, etc. described herein may be represented using any of a variety of different technologies.
  • data, information, signals, bits, symbols, etc. that may be referred to throughout the above description are represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof. Also good.
  • the channel and / or symbol may be a signal.
  • the signal may be a message.
  • User equipment can be obtained by those skilled in the art from subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless It may also be called terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology.
  • notification of predetermined information is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.
  • determining may encompass a wide variety of actions.
  • “Judgment”, “decision” can be, for example, calculating, computing, processing, deriving, investigating, looking up (eg, table, database or another (Searching in the data structure), and confirming (ascertaining) what has been confirmed may be considered as “determining” or “deciding”.
  • “determination” and “determination” include receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (accessing) (e.g., accessing data in a memory) may be considered as "determined” or "determined”.
  • determination and “decision” means that “resolving”, “selecting”, “choosing”, “establishing”, and “comparing” are regarded as “determining” and “deciding”. May be included. In other words, “determination” and “determination” may include considering some operation as “determination” and “determination”.
  • the phrase “based on” does not mean “based only on”, unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
  • the radio frame may be composed of one or a plurality of frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may further be composed of one or more slots in the time domain. A slot may further be composed of one or more symbols (OFDM symbols, SC-FDMA symbols, etc.) in the time domain.
  • the radio frame, subframe, slot, and symbol all represent a time unit when transmitting a signal. Radio frames, subframes, slots, and symbols may be called differently corresponding to each.
  • the base station performs scheduling to allocate radio resources (frequency bandwidth and / or transmission power that can be used in each mobile station) to each mobile station.
  • the minimum scheduling time unit may be referred to as TTI (Transmission Time Interval).
  • one subframe may be referred to as TTI
  • a plurality of consecutive subframes may be referred to as TTI
  • one slot may be referred to as TTI.
  • a time unit other than these may be referred to as TTI.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • one or a plurality of symbols may be included, and one slot, one subframe, or a length of 1 TTI may be included.
  • One TTI and one subframe may each be composed of one or a plurality of resource blocks.
  • the structure of the radio frame described above is merely an example, and the number of subframes included in the radio frame, the number of slots included in the subframe, the number of symbols and resource blocks included in the slots, and the subframes included in the resource block The number of carriers can be variously changed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Dans un système de communication sans fil qui comprend une station de base et un appareil d'utilisateur, l'appareil d'utilisateur comporte: une unité de réception qui reçoit, en provenance de la station de base, des informations de commande comprenant des informations d'attribution concernant une ressource servant à la réception de données de liaison descendante et des informations d'attribution concernant une ressource servant à l'émission d'informations de commande de liaison montante, via un canal de commande de liaison descendante; et une unité d'émission qui envoie les informations de commande de liaison montante à la station de base d'après les informations de commande reçues par l'unité de réception.
PCT/JP2017/028962 2016-08-10 2017-08-09 Appareil d'utilisateur et procédé de communication Ceased WO2018030473A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/323,673 US20210392663A1 (en) 2016-08-10 2017-08-09 User equipment and communication method
EP17839540.6A EP3500017B1 (fr) 2016-08-10 2017-08-09 Équipement d'utilisateur et procédé de communication
FIEP17839540.6T FI3500017T3 (fi) 2016-08-10 2017-08-09 Käyttäjälaite ja tiedonsiirtomenetelmä
ES17839540T ES2964975T3 (es) 2016-08-10 2017-08-09 Equipo de usuario y método de comunicación

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-158264 2016-08-10
JP2016158264A JP2019169751A (ja) 2016-08-10 2016-08-10 ユーザ装置、及び通信方法

Publications (1)

Publication Number Publication Date
WO2018030473A1 true WO2018030473A1 (fr) 2018-02-15

Family

ID=61162138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/028962 Ceased WO2018030473A1 (fr) 2016-08-10 2017-08-09 Appareil d'utilisateur et procédé de communication

Country Status (6)

Country Link
US (1) US20210392663A1 (fr)
EP (1) EP3500017B1 (fr)
JP (1) JP2019169751A (fr)
ES (1) ES2964975T3 (fr)
FI (1) FI3500017T3 (fr)
WO (1) WO2018030473A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7212864B2 (ja) 2019-09-18 2023-01-26 いすゞ自動車株式会社 車両の冷却装置の導風構造
JP7493986B2 (ja) * 2020-04-10 2024-06-03 パナソニックホールディングス株式会社 無線ユニット及び通信方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012516616A (ja) * 2009-01-30 2012-07-19 サムスン エレクトロニクス カンパニー リミテッド データチャンネル又は制御チャンネルを通じるアップリンク制御情報の送信
JP2013526088A (ja) * 2010-04-22 2013-06-20 シャープ株式会社 物理上りリンク制御チャネルリソースを割り当てるための通信方法、通信システム、基地局、ユーザ装置、および、集積回路
JP2016506138A (ja) * 2012-12-10 2016-02-25 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ワイヤレス機器、無線ネットワークノード、および機器間通信での不連続受信のための方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011004989A2 (fr) * 2009-07-08 2011-01-13 한국전자통신연구원 Procédé de réception sur la liaison montante pour une station de base, et procédé de transmission sur la liaison montante pour un terminal utilisant une ressource sans fil partagée
US9351289B2 (en) * 2011-06-06 2016-05-24 Lg Electronics Inc. Method for transmitting uplink control information and user equipment, and method for receiving uplink control information and base station
US8995385B2 (en) * 2011-08-05 2015-03-31 Samsung Electronics Co., Ltd. Apparatus and method for UE-specific demodulation reference signal scrambling
US9839018B2 (en) * 2013-07-03 2017-12-05 Futurewei Technologies, Inc. Systems and methods for transmitting data information messages on a downlink of a wireless communication system
JP6400022B2 (ja) * 2013-11-29 2018-10-03 シャープ株式会社 端末装置、基地局装置、および、通信方法
US20150181566A1 (en) * 2013-12-20 2015-06-25 Broadcom Corporation Apparatus and method for reducing upstream control channel resources in a communications system
US10122506B2 (en) * 2014-12-23 2018-11-06 Qualcomm Incorporated Single TTI transmission of control data in wireless communications
KR20170114911A (ko) * 2016-04-04 2017-10-16 삼성전자주식회사 무선 통신 시스템에서 피드백 송수신 방법 및 장치
US11171746B2 (en) * 2016-06-15 2021-11-09 Apple Inc. Channel state and beam related information reporting
US10462739B2 (en) * 2016-06-21 2019-10-29 Samsung Electronics Co., Ltd. Transmissions of physical downlink control channels in a communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012516616A (ja) * 2009-01-30 2012-07-19 サムスン エレクトロニクス カンパニー リミテッド データチャンネル又は制御チャンネルを通じるアップリンク制御情報の送信
JP2013526088A (ja) * 2010-04-22 2013-06-20 シャープ株式会社 物理上りリンク制御チャネルリソースを割り当てるための通信方法、通信システム、基地局、ユーザ装置、および、集積回路
JP2016506138A (ja) * 2012-12-10 2016-02-25 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ワイヤレス機器、無線ネットワークノード、および機器間通信での不連続受信のための方法

Also Published As

Publication number Publication date
EP3500017A4 (fr) 2020-03-25
EP3500017B1 (fr) 2023-11-08
US20210392663A1 (en) 2021-12-16
JP2019169751A (ja) 2019-10-03
EP3500017A1 (fr) 2019-06-19
ES2964975T3 (es) 2024-04-10
FI3500017T3 (fi) 2023-11-28

Similar Documents

Publication Publication Date Title
US11395261B2 (en) User equipment and data transmission method
JP7043395B2 (ja) 端末、無線通信方法及びシステム
US11963135B2 (en) User equipment, base station, and method of transmitting a scheduling request
US11057906B2 (en) Radio communication apparatus and radio communication method
US11362791B2 (en) Terminal and a base station for mapping or receiving a demodulation reference signal
US11743901B2 (en) User equipment and communication method
JP7074667B2 (ja) 端末、無線通信方法、基地局及びシステム
JPWO2018123956A1 (ja) ユーザ装置、基地局、及び信号受信方法
JPWO2019030870A1 (ja) ユーザ端末及び無線通信方法
WO2020222265A1 (fr) Dispositif d'utilisateur et procédé de communication
EP4054287A1 (fr) Terminal et procédé de communication
US20190181990A1 (en) User equipment and retransmission control method
WO2018030121A1 (fr) Équipement d'utilisateur et procédé d'émission de signaux
US11140747B2 (en) Base station and user apparatus
EP4040897B1 (fr) Terminal et procédé de communication
WO2018030473A1 (fr) Appareil d'utilisateur et procédé de communication
CN115136647A (zh) 终端及基站
US11528709B2 (en) User terminal and radio communication method
EP4287696A1 (fr) Terminal, station de base et procédé de communication sans fil
US20230054553A1 (en) Terminal and communication method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17839540

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017839540

Country of ref document: EP

Effective date: 20190311

NENP Non-entry into the national phase

Ref country code: JP